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International Conference on Optical Communications and Networks (ICOCN)

Demonstration of optical stealth transmission carried by wideband coherent light

Huatao Zhu, Rong Wang, Tao Pu, Tao Fang, Xiang Fang Peng, Jilin Zheng, Dalei Chen, Weijiang Wu

Published Jul 1, 2015• 0 citations
Publisher

Abstract

An optical stealth transmission carried by wideband coherent light has been proposed and demonstrated over a 27 km single mode fiber link. The stealth channel can transmitted with error-free with a power 8 dB less than the noise in public channel.
DOI
10.1109/icocn.2015.7203650

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Amplified spontaneous emission (ASE) light is the most natural optical carrier to hide a message in the existing optical networks at photonic layer. To enhance the anti-intercept ability of the ASE-carried stealth channel, a novel optical stealth communication scheme based on quantum noise stream cipher is proposed. The ASE light is intensity modulated by the cipher-text according to Y-00 protocol, and then transmitted under public optical noise after power attenuation. The expression of quantum noise stream ciphered ASE signal is derived, and numerical simulation is carried out. A proof-of-concept experiment is set up to demonstrate the feasibility of the proposed scheme. The experiment results show that the quantum noise stream ciphered stealth signals can be transmitted over a 25 km single-mode fiber span error-free.
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